Automatic heating system



E. Aix SUSNICH. Aummm: HEATING SYSTEM.'

lffllz FILED fLB. 25,1920.

1,380,687. Patented June 7, 1921.

fi." e (9 INVENTOH.

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Speication of Letters Patent;

Patented June 7, 1921.

application med February 25, 1920. sei-mi No. 361,232.

andf Statey of Ohio, have invented certain` newv andv usefulrImprovements in Automatic Heating Systems,.of which the following is aspecification.

This invention relates to heating devices, and more particularly tomeans for heating thewater for the cooling system of'an auto mobileinternal combustion engine;

One. o4 the main objects ofthe invention is to. provide simple andeicient means which. may be readily applied to the coolingy system ofan. automobile engine. of the in! ternal combustion type So as to`prevent ireezing' of the same during cold weather. A further object isto provide simple and elicient means for automatically throwing theheating device into and out' of'operation in accordancewith variationsin temperature of the water in the coolingA system.. Another objects-tor providemeans whereby the heatingI device .may be readily,vconnected to a storage battery or to the magneto orl other source ofelectrical. energy; as` conditions may" require.- Further objects willappear from the detailed description.

In the drawings-:

`Figure 1 isV a.` diagrammatic view' of a. heating devicey constructedin accordance with my invention, as applied.

Fig. 2 isa fragmentary section through the heater.

A. suitably constructed casing-'1 is mounted adjacent to;- one? side ofYthe engineA of thev automobile, and rearl ofV the radiator B,

this casing. is divided by horizontal? plates or partitions 2" and 3into upper'A and lower water chambers which are connected-p by aplurality of. spaced vertically' disposed andy narrow waterl tubes. 4Heating; coils 51 are mounted` between these tubesand the lower ends ofthese` coils. are connected by a wire 6 tol one pole off an inductioncoil' 'I'. The upper ends of the heatingcoils are connected by a lead 8to a contact; 9- of av thermostatv 10 of suitable type mounted in a cap11 connected: by' a nipple 12V to the lower water chamberv of' casiiig41f. The thermostat includes a Slidable rod 13 provided at its up@ perend a: bridge piece 14 forv connecting? contact' 9` to contact 15- of"the thermostat when the rod is; lowered.

understood,` when the. temperatureY ot the water the lower'compartment.of the cas ing, falls belowv a predetermined. point, rod 18 is loweredso as to. connectY theI contacts 9 and 15V through the medium. oflbridge p1ece14.

(jontact'V 15 is connected byv a wire 16,. in which is interposed aswitch 17, to thee other pole of the secondary coil for induction coil7. One pole of the primary coil of indue-- tion coil 7. is connected bya wire 18 to a contact jaw 19,the other pole of the-primary coil beingconnected by a wire 20l to a con'- tact jaw 21. The jaws 19 and. 21cooperate with a two bladed doublethrow switch 22,k onev pole 23v ofywhich is connected by a wire 2a,v in which is interposed a switch 24a,to wire 6, the other pol'e25v ot'this switchbeing connected by a wire 26to wire 1.6. Switch 22* also cooperates with.l two contact jaws 27connected by wires 28'to a plug 29y by. means of which'. these wires maybe connected to a suitable socket,` which is connected to an electriclight circuit: orany other suitable source of electrical energy; The.blades of switch 221titinto. contact jaws 301 and 31 p0- sitioned ashort distancev from contacts 21 and' 19, when the switch is in theposition illustrated., Contact jaw 31 is connected by a wire 32;'to onepole ot a.` storage battery 33 which may be mounted in. any suitablepositionv upon the automobile, and the other pole of' this: batteryisconnected byV av wire 34:.to1 contact jaw 30.

The uppery water compartmentv ofv the radiator` Bf is connectedy by ahose section Cy to, the water jacket ot* the engine in the knownmanner,` and the. lower compartment ot the radiator isconnected byV hosesection D tothe lower water compartment of casing 1 the upper watercompartment of which is connected byv hose4 section 35.y toV theA waterjacket of the engine.

As will'. be understood, the waterl of the engine coolingsystemcirculates through the tubes 4 of the. heating device. and throng-h theradiator and?` the Water jacket. in the known manner. When this waterfalls belowi a predetermined temperature, the thermostat` 10 connectscontacts 9and 15. With the switches 1'?, 22, and* 24* in the relativepositions: illustrated, current from battery 33 tlowsthrough the primarycoil ot induction coil 7.' The induced 'current in thesecondaryl windingof the induction coll will How through heating coils 5 so as to heat thewater flowing through tubes 4 sulciently to eieetually prevent it fromThe storage battery is preferably used when the automobile is standingstill on the road. During travel of the automobile, and aiter the enginehas warmed up sutlciently, the switch 22 is thrown into open position,thus saving the battery current. During the time when the automobile isstored away, the heating current may be obtained more cheaply from alocal light circuit. To this end, switch 22 is thrown into its otherposition, switch 17 being opened and switch 24* closed. With theswitches in this position, current will flow from plug 29 through wires28 to wires 24 and 26, and thence through the heating coil,.when thethermostat rod 13 is lowered, the storage battery 33 and induction coil7 being cut out. Whenever required by the voltage o the local lightcircuit, suitable means may be inserted in line 28 to reduce the voltagein the heating coils 5, as indicated by resistance 28. Preferably,though not necessarily, in practice suitable connections are providedbetween switch 22 and switches 17 and 24:, by means of which switch 17will be closed and switch 24 opened when switch 22 is thrown into theposition illustrated, switch 17 being opened and switch 24:* closed whenswitch 22 is thrown into its other operative position. YAs will beunderstood, and as indicated herein, slight changes may be made indetails of construction and arrangement of various parts of theinvention without departing from the eld and scope of the same, and Iintend to include all such variations, as fall within the scope of theappended claims, in this application in which a preferr-ed form only ofmy invention is disclosed.

What I claim is In combination with an internal combustion engineincluding a water jacket, a radiator having its upper water compartmentconnected to said jacket, a casing having an upper water compartment anda lower water compartment communicating with the water jacket and thelower water compartment of the radiator respectively, tubes connectingthe upper and lower compartments of said casing, heating coils mountedbetween said tubes, a source of supply of electrical energy connected tosaid coils, and means interposed tothe circuit of said source of supplyof electrical energy for closing said circuit when the temperature otthe water owing through said casing falls below aA predetermined degree.Y

In testimony whereof I aiix my signature.;

EUGENE WINTON SUSNICH.

